Feeding device for metal-punching machines.



L. NEUMANN. I FEEDING DEVICE FOR METAL PUNOHING MACHINES.

I APPLICATION FILED MAY 17, 1912.

1,053,209. I I I Patented Feb. 18,1913.

Mtwmsse I I I Jnvenior: mx m haw-w Q 42% i UNITED STATES PATEN :oFFIcE.

Louis NEUMANN, or mean, GERMANY, assieimn or ONE-HALE T0 WILHELMWIPPEBMANN'; JR, OF WESTPHALIA, GERMANY.

FEEDING DEVICE FOR METAL-PUNCHING MACHINES.

Specification of Letters Patent.

Patented Feb. 18,1913.

To all whom it may concern:

Be it known that I, LOUIS NEUMANN, a subject of the Emperor of Germany,residing at Hagen, \Vestphalia, Germany, have invented a new and usefulFeeding De vice for Metal-Punching Machines, of which the following is aspeclficati'on.

The present invention relates to a device for feeding-metal blanks suchas the link plates of bicycle chains and the like to the punchingmachine.

It is a common practice to feed such blanks to the machine in which theholes are punched by means .of endless traveling bands on which theblanks are disposed by hand. This handling of the blanks is obviated bythe present invention according to which a feeding wheel carryingradially disposed magnets is provided, the magnets being adapted to takethe blanks from a receptacle and feed them, through the medium of achute, onto the traveling band.

The invention also includes certain improvements as regards thereceptacle and the band.

In the accompanying drawings the invention is illustrated, Figure 1representing a sectional side view, and Fig. 2, a plan of the apparatus.

The blanks are stored in a receptacle (1 having a slanting bottom d andfitted with a partition 6, the latter forming at its lower end a pasage0 through which the blanks escape singly from the receptacle. Slidingalong the bottom-wall d the blanks are stopped by a feeding wheel 6which is provided with radially disposed magnets f adapted to attractthe blanks and compel them to participate in the movement of the wheel.At the other side of the wheel e an inclined chute g is provided whichis so arranged relat-it e to the magnets as to strip the blanks off thelatter and feed them onto,

the endless band hwhich in its turn conveys them to'thc punchingmachine. Vertical walls Z are carried from the receptacle a over thewheel e and along the band it so as to form a guide channel for theblanks. The band is provided with a thickening i which is accommodatedin the space between the walls Z and which prevents the blanks fromescaping laterally underneath said walls. An inclined plate is isarranged over the band between the walls Z so as to form a gatecorresponding with the thickness of the-blanks, the latter being thusprevented from passing except in a single file.

The magnets should be adapted to take only one blank at a time andshould be arranged at a distance apart determined by the desireddistance between the blanks on the band. Since the attracted blanks areenergized and tend to themselves, the arrangement should be such that ifa, second blank follows it either turns into the space between themagnets or is attracted and delivered by the next magnet.

I claim 1. A device for feeding metal blanks to a punching machine,comprising the combination with an endless traveling band which conveysthe blanks to the machine, of a feeding wheel, radially disposed magnetscarried by said wheel and adapted to attract and convey said blankssingly, a receptacle having a slanting bottom adapted to feed the blankssingly to the wheel, and an inclined chute disposed so as to strip theblanks from the magnets and deliver them onto said band.

2. A device for feeding metal blanks to a punching machine, comprisingthe combination with an endless traveling band which conveys the blanksto the machine, of a feeding wheel, radially.disposed magnets carried bysaid wheel and adapted 'to attract and convey said blanks singly, areceptacle having slanting bottom adapted to feed the blanks singly tothe wheel, an inclined chute disposed so as to strip the blanks from themagnets and deliver them onto said band, vertical walls arranged alongsaid band so as to form a guide-channel for the blanks, and a platearranged between said walls so as to form agate adapted to prevent theblanks from passing except ina single file.

3. A device for feeding metal blanks to a punching machine, comprisingthe combination with an endless traveling band which conveys the blanksto the machine, of a feedin wheel, radially disposed magnets carrie bysaid wheel and adapted to attract and convev said blanks singly, meansfor accommodated between said walls so as to feeding the blanks singlyto the wheel, an prevent the blanks from escaping laterally inclinedchute disposed so as to strip the underneath the latter.

blanks from the magnets and deliver them LOUIS NEUMANN. [1,. s.] 1 5onto said band, vertical walls arranged on Witnesses:

said band soas to form aguide-channel for HELEN NUFER,

the blanks, and a thickening on said band ALBERT NUFER.

